# Author: wangjk
# 2025年10月24日12时09分
# xxx@qq.com

metros = ['line3', 'line12', 'line21']

print(f'When I go to Bai Yun Airport, I take metro {metros[0]}')
print(f'When I go to Hui Hai Garden, I take metro {metros[1]}')
print(f'When I went to XP to work, I take metro {metros[2]}')
